Francis Coquelin has agreed to join LaLiga side Valencia on a four-and-a-half-year contract following a decade with Arsenal, the Spanish club announced on Thursday.
Coquelin, 26, arrived at Arsenal from French side Laval in 2008 and went on to make 160 first-team appearances.
The combative midfielder spent several loan spells away from the Gunners before establishing himself as an integral part of a Arsene Wenger side which won the FA Cup in both 2015 and 2017.
Arsene Wenger confirmed the move following Arsenal's 0-0 draw with Chelsea in their Carabao Cup semi-final first leg.